Nut-lock.



W. A. SMITH.

NUT LOOK.

APPLICATION FILED FEB. e, 1908.

899,630. Patentedfseptr 29, 1908.

2 sHBBTSAHEBTI.

@W m I W. A. SMITH.

NUT LOOK.

APPLICATION FILED FEB. 6,1908. 899,630, Patented Sept. 29, 1908.

2 SHEETS-SHEET 2 af Sm/if ..angular, and it preferably conforms to the l l ,tain new and useful Improvements in Nutbe bent backwards at right angles toengagc X is nn'irnn simrn ammoiu ion.

WILL] AM A NDltlfil' hllll'lll, Ul UNION, SOUTH ()A HULI NA, SSlUNl DR. 01 ONE-HALF TQ SAMUEL JACKSON 11A RRJS, OF UNION, bUU'ill CA1 )LINA.

NUT-LOCK.

Specification of Letters Patent.

Patented Sept. 29, 1908.

Application filed February 6, 1908. I Serial No. 414,640.

Be it known that I, WILLIAM ANDn'aw SMITH, a citizen of the United States, rcsiding at Union, in the county of Union and State of South Carolina, have invented cer- To allwhom it may concern: l

Locks; and I do declare the following to be a full, clear, and'exact description of the invention, such as will enable others skilled. in the art to which it appertains to make and use the same.

. This inventionrelates to an improved nut lock.--

The object of the invention is to provide simple and efficient means for locking a nut to a bolt.

In the accompanying drawings: Figure 1 represents a perspective view of a bolt with a nut locked thereon by this improved nut lock. Fig. 2 is a side elevation of the bolt. Fig. 3 is a perspective view of the nut. Fig. 4 is a side elevation showing a slightly niodi fied form of nut lock. Fig. 5 is a plan view of the collar shown in Fig. 4. Fi 6 is a side elevation of the modified form of theinvcntion, showing a shaft screw-threaded at both ends. ig. 7 is a similar View of a headless bolt constructed in accordance with this invention. Fig. 8 is a cross section taken 'on line 8-8 of Fig. 7. 9 is a vertical sec-- tional view through the nut.

In the embodiment illustrated, a bolt 1 of ordinary construction is shown, having a groove 2 of any. desired shape in cross section, extendin longitudinally thereof from one end to t 10 other. Disposed in this groove is a wire 3, which extends the full length of the groove and has one end adapted to project beyond the end of the bolt and to a groove 4 in the outer face of the nut 5, as shown. The wlre may also be of any desired shape in cross section, eithcr round or shape of the groove in' which it is to be used. When this wire is bent backwards and embedded in one of the grooves, as 4, in the nut, it will behnpossible f r the nut to turn in either direction. As shown, the nut 5 is novided with a plurality of groovos, as 4, which are made deepeiiat the outer. edge to provide' forthe wire being more completely buried at held. The groove 2 in the bolt .1 preferably extends across one end thereof to receive one cud of the wire 3 which lies in said groove out of the way and is ready for use to form a locking means for the nut win-.11 a flush fit occurs with the nut at the end of the bolt and across the under face of its head, as

' shown in Figs. *1 and 2 2 and the wire is preferably clenched in the groove at any desired point, preferably under the head of the bolt. in the modification shown in Fig. 4, a shaft,6 is shown with a collar 7 extending therearound and having a set screw 8 operable through said collar and bearing on said shaft 6. This screw prov idcd with a longitudinal groove 9, which extends across the screw-thrcadcd end thereof and in which is arranged a wire 10, the inrer end of which is adapted-to fit in one of the grooves 11 in the outer face ofhthe collar 7 to look the collar against turning on the screw. The wire is preferaby fastened 111 the groove at some )oint to )revcnt its accidental 'seiaration 1 7 therefrom and its consequent loss.

In the form shown in Fig 6, a shaft 12 is screw-thrcaded at both duds and provided with a groove extending longitudinally from cud to end, and preferably across each end thereof. wire 13 is embedded in the shaft and is preferably. clenched at the center thereof,,as shown at 14. This bolt or shaft is adapted for use with two nuts, which are fastened in place by a single wire.

in Fig; 7 a headless bolt 15 is shown, having a groove 16 extending beyond the threads and in which a wire 17 is clenched. A nut 18 is shown mounted on this bolt and having a plurality of radially extending grooves 19 in its 'outerface, in which the free end of the 'wire 17 is adaptrd to be bent for lockingthe bolt in adjusted position.

Having thus described my invention, what 1 l claim is ncwa-nd desire tosecure-byiLet tcrs Patent, is:- I. I

i. in a nut lock the combination with 5 bolt having a groove extending longithd'i nally thereof an'dtransversely,across' the end of the "screw-threaded portioh; a nut having a groove extending transversely. across oneface thereof and a wire disposed in said longitudinal groove and normally lying in said grooved end and adapted to be bent to lie in the groove of said nut to lock said nut against turning.

Elie combination of ya member screw In testimony whereof-*1 have hereunto set threaded atone end andhaving a groove exv my handy in presence of two subscribing W11.-

tending longitudinally thereof and continuing across its screw threaded end, a Wire arnesses.

' WILLIAM ANDREW SMITH. said grooved end and a member operable on Witnesses:

T. J. VINSON,

ranged in said longitudinal groove and in i said grooved member and havin(% a groove in one face for engagement by sai wire. D. A. TOWNSEND. 

